If you happen to know about more fonts, then please report them to me.

All non-Unicode Coptic fonts that are available define their own character encoding in
the ASCII range. The Coptic.Net
site had tried to define a standard encoding for Coptic fonts, which they called Coptic
Standard (CS). They have already mapped 8 most common fonts into this standard (and
renamed them CSxxx). I have re-encoded these again into Unicode and merged each of them
separately into the FreeSerif TrueType
font. I make them here available for download, if someone is interested. Please notice
that I am not an expert in font creation and I am not sure, if they also would work for
you, the combining with the Jinkim and the bar still have to be refined, so try them with
no warranty :

If you have any font which is not Unicode encoded, you can re-encode it yourself using the
wonderful font tool: fontforge. If you
use fontforge under Linux, it would be easier to patch iconv first as described
here.